Nonlocal permittivity from a quasistatic model for a class of wire media

Maslovski, Stanislav I.; Silveirinha, Mário G.

doi:10.1103/physrevb.80.245101

Cited by 120 publications

(152 citation statements)

References 21 publications

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“…2. However, we will not consider spatial dispersion and anisotropy, since the structure in question is designed strictly for normal incidence [36][37][38][39][40].…”

Section: Influence Of Dispersion and Losses On Metaspacersmentioning

confidence: 99%

On Negative Index Metamaterial Spacers and Their Unusual Optical Properties

Aslam¹

2013

PIER B

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Abstract-We theoretically investigate the possibility of using a metamaterial structure as a spacer, named as metaspacer, which can be integrated with other materials in microfabrication. We show that such metaspacers can provide new optical behaviors that are not possible through conventional spacers. In particular, we investigate negative index metaspacers embedded in fishnet metamaterial structures and compare them with conventional fishnet metamaterial structures. We show that the negative index metaspacer based fishnet structure exhibits intriguing inverted optical response. We also observe that the dependence of the resonance frequency on the geometric parameters is reversed. We conclude with practicality of these metaspacers.

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“…2. However, we will not consider spatial dispersion and anisotropy, since the structure in question is designed strictly for normal incidence [36][37][38][39][40].…”

Section: Influence Of Dispersion and Losses On Metaspacersmentioning

confidence: 99%

On Negative Index Metamaterial Spacers and Their Unusual Optical Properties

Aslam¹

2013

PIER B

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“…This problem has been addressed previously in the literature for the case of linear materials [23,24,25]. The ideas described below are a generalization of the results of Ref.…”

Section: Geometry and Quasi-static Modelmentioning

confidence: 79%

“…The ideas described below are a generalization of the results of Ref. [25] to the case of a nonlinear host.…”

Section: Geometry and Quasi-static Modelmentioning

confidence: 99%

“…II we generalize the theory of Ref. [25] to the case of a nonlinear host, showing that the dynamics of the macroscopic fields can be described with the help of two additional variables with known physical meaning. In Sect.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, it would be highly interesting to characterize them using an effective medium approach since this can greatly simplify the numerical modeling and highlight the relevant physics. As a first step in this direction, here, by extending the analytical model for the wire medium developed in previous works -3- [23,24,25], we derive an effective medium theory that describes the dynamics of the macroscopic electromagnetic fields in a nanowire array embedded in a Kerr-type dielectric. Nonlinear effects in electromagnetic metamaterials have been investigated in many previous works, both the effective medium properties [26][27][28] as well as the general implications on the wave phenomena [29][30][31].…”

Section: Introductionmentioning

confidence: 99%

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Effective medium response of metallic nanowire arrays with a Kerr-type dielectric host

Silveirinha

2013

Phys. Rev. B

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We derive an effective medium model to characterize the macroscopic electromagnetic response of metallic nanowire arrays embedded in a host dielectric with a Kerr-type nonlinear permittivity function. It is shown that the macroscopic electromagnetic fields are coupled to the conduction current in the nanowires and to an additional quasi-static potential through a system of nonlinear equations. We prove that a weak nonlinearity leads to an electromagnetic response closer to that of an indefinite medium, and to isofrequency contours with increased hyperbolicity. For high-field intensities the negative refraction of electromagnetic waves at an air − nanowire material interface is enhanced when the nanowires are embedded in a self-focusing Kerr medium.

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Wire Metamaterials: Physics and Applications

et al. 2012

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The physics and applications of a broad class of artificial electromagnetic materials composed of lattices of aligned metal rods embedded in a dielectric matrix are reviewed. Such structures are here termed wire metamaterials. They appear in various settings and can operate from microwaves to THz and optical frequencies. An important group of these metamaterials is a wire medium possessing extreme optical anisotropy. The study of wire metamaterials has a long history, however, most of their important and useful properties have been revealed and understood only recently, especially in the THz and optical frequency ranges where the wire media correspond to the lattices of microwires and nanowires, respectively. Another group of wire metamaterials are arrays and lattices of nanorods of noble metals whose unusual properties are driven by plasmonic resonances.

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Nonlocal permittivity from a quasistatic model for a class of wire media

Cited by 120 publications

References 21 publications

On Negative Index Metamaterial Spacers and Their Unusual Optical Properties

On Negative Index Metamaterial Spacers and Their Unusual Optical Properties

Effective medium response of metallic nanowire arrays with a Kerr-type dielectric host

Wire Metamaterials: Physics and Applications

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